Sectional boiler



Mar. 5, 1929. c. F. NEWPORT SECTIONAL BOILER 14 Shoots-Sheet 2 Filed Feb. 22 1924 5, 1929. c. F. NEWPORT sncnom. 501mm Filed Feb. 22, 1924 4 Sheets-Sheet 3 ME: 4%.? M

Patented Mar. 5, 1929.

UNITED STATES CHARLES E. NEWPORT,

or CHICAGO, ILLINOIS..-

SVECTIOINAL BOILER.

Application filed February 22, 1924. Serial No. 694,450.

This invention relates to boiler construction.

One obj ect of the invention is to provide a boiler of the rectangular type, composed of a plurality of horizontally disposed sect-ions having a vertically disposed central fuel magazine.

Another object of the invention is to provide a boiler of the character indicated have ing an automatic fuel feed, including a'inagazine, wherein the capacity of the magazine is proportionate to the number of sections employed.

Another object of the invention is to provide a rectangular boiler composed of horizontally arranged sections including a plu-. rality of intermediate water-j acketed flue sections, wherein the intermediate flue sections are exact duplicates, being reversely arranged to provide proper circulation of the water and hot gases.

Another object of the invention is to provide a boiler construction wherein are employed a plurality of horizontally disposed sections, so arranged as to have flue travel from end to end, the sections being so designed that boilers of various sizes may be produced by increasing or decreasing the number of sections employed.

Still another object of the invention is to provide a boiler construction, wherein are employed a plurality of horizontal sections,

the individual sections being so designed that different sized sections for various sized boilers may be economically manufactured by employing one set of patterns, sections or portions of which are removed to reduce the length of each pattern to produce sections for relatively smaller sized boilers.

Other objects and advantages of the invention will more clearly appear from the description and claims hereinafter following.

In the drawings forming a part of this specification. Figure 1 is a front end elevational view of a boiler, illustrating my improvements in connection therewith. Figure 2 is a side elevational view looking from the left of Figure 1. Figure 3 is a vertical sectional view corresponding substantially to the line 3-3 of Figure 2. Figures 4 and 5 are vertical sectional views corresponding respectively to the lines 4-4 and 5-5 of Figure 1. Figures 6 and 7 are horizontal, sectional views, corresponding respectively to the lines 6-6 and T-7 of Figure 1. Figure 8 is a bottom plan view of one of the intermediate flue lar base or ash pit section of a boiler, 11 a water-jacketed fire pot section, 12 a water jacketed crown sheet sect-ion, 13 a water-jacketed dome section and 14-14 apair of like water-jacketed intermediate sections. All of v the sectionsof the boiler are of rectangular outline and are super-imposed one upon the other as clearly shown in Figures 1, 2, 3, 4 and 5 V At the top of each of the sections 10, 11, 12 and 14, along the outer edges of the front, rear and side walls, upstanding ribs 15 are provided, the ribs being joined at the corners forming a continuous rim adapted to receive the bottom of the next super-imposed section nested therein. The sections are securely held together by four vertically disposed bolts 16, extending through and an chored to lugs 17 in the four corners of the fire pot and dome sections 11 and 13 respectively. The lugs 17 of the fire pot section are at the top thereof and are engaged by the heads ofthe bolts, while the lugs 17 of the dome section are at the bottom of the same and are engaged by the nuts threaded on the upper ends of the bolts. The dome section 13 is provided at the rear end with a pair-of .flue openings 18, communicating with the interior of a hood 19, having a horizontally disposed opening 20 at the back of the boiler for establishing communication between the smoke pipe, not shown, andthe flue 18. The hood 19 is held against lateral displacement by a rib 21 upstanding from the dome section 13.

The ash pit section 10 is provided with a sectional grate 22 and has the usual ash pit door 23 at the front thereof. The ash pit section has an auxiliary air supply inlet 24 in the back wall thereof, through which air is admitted to the fire pot. The air inlet 24 is provided with a hinged cover plate or door 25 automatically controlled in the usual manner by a regulating device 26 of well known construction at the top of the boiler, with which it is connected by a vertical rod 27. The grate 22 comprises a plurality of sections 28 arranged in two sets at opposite sides of the longitudinal axis of the boiler, each set in the instance shown comprising three sectlons. The sections 28 of each set are inclined toward the longitudinal center of the boiler and have theirinner endssupported on a center" grate rest 29 extending from the front to the rear of the boiler. The individual grate sections are mounted for rocking movement, each having its upper or inner end suitably jour naled inthe rest 29 and the outer or lower end journaled in a bracketbearing 30 formed integral with the corresponding side wall of the section 10. The grate sections 28 are provided with the usual crankarms 31 adapted to be oscillated by shaker bars 32 at the'opposite sides of the boiler, operated by pivoted shaker arms or levers 33 at the front of the boiler. The grate rest 29 is in the form of a hollow casting and is preferably air cooled, the air 7 being admitted through an opening 34 in the. l front wall of the section 10, communicatlng depending lug 37- to which is secured a bracket 38, which in "turn is secured to the rear wall 7 of the'casing 10'by a bolt, which also extends through the lug 37. The bracket 38 is further supported by an integral, rearwardly extending lug 39 seated in a-socket 40, formed on the I rear wall of the ash pit section. The upper portion of thebraclret 38 is forked,as clearly shown in Figure 3, and embraces the extremity of the lower side portion of the rest 29. An ash spray is preferably also provided, the same consisting of a horizontally disposed, perforated tube l1 supported at its rear end in a socket 12 on the bracket 38 and having its front end projecting through the front wall of the. section lO-and adapted to be connected to a hose or other source of water supply.

The fire pot section 11, preferably a casting,

is of hollow box-like form, open at the top and bottom and hasdouble front, rear andjside walls, the spaces between the various Wall's inter-communicating and together serving as a continuous water compartment or jacket,

The water jacket is closed at the top and bottom by horizontal walls and 44 and the front, rear and side walls are slightly inclined I upwardly and outwardly as most clearly shown in FiguresB, 4 and 5, The lower end of the front wall of the section 11 is centrally cut away asindicated at 45 to it the projection 35. The section 11 is supported on a continuous horizontal flange at the upper edge of the front, rear and side walls of the section 10, the flange 46 being provided with the rib 1'5 hereinbefore referred to. Ribs 47 are pro- 1,7os,se4

inner edges of the front, rear and side walls thereof, forming a continuous rimf adapted to engage the bottom end of the section 12 interiorly.

The crown sheet section '12, which is, also of rectangular box-like form, has double front, rear, side and top walls defining a continuous water jacket. The section 12 is provided with a central opening d8 of generally rectangular outline defined by downwardly inclined 1 double side walls 49 -19 and the vertically disposed inner walls of the front and rear double walls of the section. The walls 49 converge downwardly and have their lower ends spaced apart, thereby providing a narrow elongated outlet 50 cominunicatingwitli the interior of the fire pot section 11. As clearly shown'in Figure 3, the outlet 50 is disposed in vertical alinement with the grate rest 29. At the top, front and rear ends, each double walled portion 9 coinlnunica'tes with the water jacket of thesection 12, forming a continuation thereof. As clearly shown in Figure 3, theclosed lower ends of the double walled portions 49 are disposed slightly above the level of the closed lower ends of the side and end walls of the section 12'so that when'the water is drained from the latter, the double walled portions 49 will also be completely drained, due to the direct communication between the opposite ends of the latter and the front and rear double wall portions of the section 12. It will be evident that it is, therefore, unnecessary to provide a separate-drain pipe for the double walled portions 19. At the front of the boiler, two openings 51 are provided, which communicate with the interior of the'firepot. The openings 51 are disposed at opposite sides of the center of the boiler, the upper portion of each opening being formed in the section 12 and the lower portion in the section 11. The openings are closed by hinged furnace doors 52 pivoted on door frames 53 suitably secured to the respective sections.

The sections 14 which areeiiact duplicates are also of rectangular outline. Each section 14 has spaced end walls 54l.54, spaced side walls 5555, a top wall 56 and a raised bottom wall 57. I Each of the sections 1a is provided witha central,substantially rectangular opening 58 definedby a continuous wall 59. The portions of the walls 54, 55 and 59 extending below the bottom wall 57 are hollow, as shown, forming a continuation of the water jacket defined by the top, bottom, side and end walls of the section; Each section 14 is also provided with two vertical openings 60 at one end thereof, for a purpose hereinafter described, the openings being spacedv apart laterally and disposed on opposite sides of the section. l/Vhen the parts of the boiler are as sembled, the sections 14.- are reversely ar-' ranged, end for end, so that the end of the lower section 14 having the openings 60 will be disposed at the back of the boiler, while the end of the upper section 14 provided with the openings 60 will be at the front of the boiler. As clearly shown in Figure 5, the space provided between the top of the section 12 and the raised bottom wall of the lowermost section 14 and the space provided between the top wall of the latter and the raised bottom wall of the section 14 immediately above the same, define horizontal fiues 61 and 62 respectively, communication between the fines 61 and 62 being established by the openings 60 of the lowermost section 14. To establish communication between the flues 61 and the interior of the fire pot, the crown sheet section is provided at the front end thereof with a pair of vertical openings 6363 similar in shape and corresponding in size to the openings 60. The fines 61 and 62 each have clean-out openings at the opposite sides of the boiler, closed by doors 6464, the clean-out openings being formed in the opposite sides of the respective sections 14.

The dome section 13 which is also of generally rectangular outline in plan, comprises a base 65 corresponding in size to and fitting the upper section 14. The-section 13 has a top wall 66, a front wall 67, spaced side walls 6868, a back wall 69 having its lower end terminating at the top of the base portion, and a raised bottom wall 70. The base 65 extends rearwardly beyond the main body portion of the section and is provided with a back wall 71, and a top wall 72 extending to the back wall 69. The side walls of the extended portion of the base 65 are continua.- tions of the side walls of the main body portion of the dome section. The dome section 13 is also provided with a cavity 73 open at the top and front of the boiler, defined by spaced side walls 747 4, back wall 7 5, a front wall 76 co-extensive in height with the base 65 and an inclined wall 77 spanning the space between the walls 76 and 67, the top wall 66 and the front wall 67 being cut away to correspond with the openings of the cavity. The cavity 73 is also open at the bottom and communicates with the rectangular opening 58in the uppermost section 14. The alined openings 48 and 58 of the sections 12 and 14 and the cavity 73 of the dome section 13 together define a fuel storage magazine, the inclined walls ing with the base portion 65 thereof. The

channel provided by the spaced walls 69 and also serves to establish communication bemunication between the fine 62 and the fine 80 being established by the openings 60 of the uppermost section 14. The openings 18 hereinbefore referred to serve to establish communication between the interiorof the hood 19 and the flue 80, the same corresponding in size and contour to the openings 60. The fine 80 is also provided with cleanout openings formed in the opposite sides of the section 13 and closed by doors 64 similar to the doors 64 hereinbefore described.

ater is admitted to the boiler through an internally threaded inlet opening 81 formed in the outer section of the double rear wall of the fire pot section 11. The top wall 66 of each compartment of the dome section is provided with the usual outlet openings 82-82.

Communication between the sections 11, 12,

13 and 14 is established through four connecting nipples 84, two of the nipples 84 being disposed at the front of the boiler, one connecting the sections 11 and 12 and the other connecting the two sections 1414. The two remaining nipples 84 are disposedat the back of the boiler, oneconnecting the section 12 with the lowermost section 14 and the other connecting the section 13 with the uppermost section 14. The sections 11, 12, 13 and 14 are also connected by four nipples 85, two being disposed at the front and two at the back of the boiler. One of the nipples 85 at the front of the boiler connects the section 12 with the lowermost section 14 andthe other connects the section 13 with the uppermost section 14. One of the nipples 85 at the back of the boiler connects the sections 11 and 12 while the other connects the two sections 1414. Each of the nipples 85 is plugged as indicated at 86 to shut off communication between the sections. The nipples 84 and 85 are of the same size, being exact duplicates, except in that the nipples 85 are plugged. As clearly shown in the drawings, each of the sections 11, 12, 13 and 14 as provided with openings 87 receiving the nipples 84 and 85. All of the openings 87 of the various sections are of. the same size, and as. all the nipples 84 and 85 are also of one size, the nipples may be inter-changed and their positions reversed as desired. The openings 87 at the front and rear of each section are equally spaced from the center and are disposed on the longitudinal axis of the section. With the openings thus arranged in the section 14, it will be evident that inasmuch as the sections 14 are exact duplicates, the openings will properly register when the upper section 14 is reversed end for end and superimposed on the lower section 14. As clearly shown inFigures 7 and'8, each section 14 is entirely symmetrical with respect to its opposite ends, with the exception that-the open;- lugs 60 are dlsposed at. only one'end thereof, With the upper SGCtlOD I'GVGI'SGCl end for end:

' with referenceto the lower seetion asshown in Figure 5, the openings of the former will be disposed at the frontgvhile the opens ings 6 0 of the latter will bedisposed'. at the back ot the boiler, as hereinbefore described. Inasmuch as the sections 14 aremadeexact:

duplii'rates, it will be evident that theorist-oi"- manufacture ismaterially reduced.

Viththe arrangement of the nipples '84,,

- hereinbctore described, circulation of the water will be etlected as follows ::As the water becomes heatechihe general directionofflow of the current will be from the=sectioni 11' to" the section 12,, horizontally through the latter to the back ofthe boiler,.upwardly from the section 12 to the lower' section 14, hori= zontally through the latter to'the front of the boiler, upwardly. into the-topmost section14,.

horizontally through the latter tothe back of the boiler, upwardly into'the section l3and thence toward the. front of the boiler. The hot gases in passing: fromi the fire pot, successively through the fiues 61, 62 and intense counter or eddy: currents and increase ing the eificiency of the. boiler.

, Referring next to the embodiment-of: the

invention; illustrated in Figure 9; theconstruction is in all'respects'the same: asthat; hereinbefore described, with the exception: that the boiler, as shown,includesthree inter mediate sections instead ofitwo'only,.aiidthatithe crown sheet section: is" slightly modified:

The modification in the crown section isneecssary due to the employment of the odd num:

ber of intermediatesections, as thepositionof the vertical flue opening through'the-crown sheet section must be reverseds'sosthat the outlet flue of the dome section may: be disposed;

at theback of the boiler to provide proper circulation of the heated gases. 7

In Figure 9, 110 indicates the ash. pit section, 111' the fire pot section, 112 the crown" sheet section, 113 the dome section and:

114-414 the three intermediate sections: The ash pit, fire pot, dome and the three intermediate sections areof precisely the same construction as the corresponding, sections 10, 11, 13 and: 14 hereinbefore describedi. The boiler is provided with horizontally dis-- posed fines 161, 162 and 262vand 180,.andivertically disposed flue openings160-160 serve: to establish communication between the respective fines. Gommunlcation between the flue 161 and the interior of the fire pot section 112 is had through openings 163 and'the hot gases pass out. of thezfiileclsfi through.

openings 118 communicating with the interror of the h0odi119 whichin turn coinmunicateswith the'smoke pipe,- In this connection, it is pointed out that the section 112 is in allfrespects similar to the section 12 hereinbetore described with the exception that openings 163 are disposed at the back of the boiler instead of at the front of the same. In manufacturing the section 112,.the same pattern is preferably made use of which is used in producing thesection 12 hereinbefore described, and in order to make use of a singlepatt'ern and a corresponding core, openings are formed in both the front and back of the pattern andcore corresponding tothe openings 63 and 163, the opening corresponding to the opening 63 being plugged when the section 112 is formed, and the opening 163 being plugged when the section 12 is formed The boiler shown in Figure 9 is also provided witha fuel feed magazine similar to that hereinbefore described, the sections 112, 113 and 114 being provided with alined, I

vertical openings defining the magazine;

Thesections 111, 112,113 and 114-114 are connected nipples 184 and 185 similar to the nipples 84 and hereinbeitore.described, the nipples 184' establishing communication between the sections and the nipples 185 being plugged. As shown in Figure 9, two nipples 184 are disposed atthe front-of the boilerand three nipples 184 are disposed at: the back: thereof. One of the nipples 184 at the front of the boiler establishes communication between the section 112 and the lowermost section 114, while the'other nipple 184 establishes communication between the uppermost section-114 and the section 114 immediately therebelow. The lowermost-nipple at the back or" the boiler establishes communication betweenthe sections 111 and 112, the uppermost nipple 184 establishes communication between the lowermost section 114 and the section-114 immediately thereabove. In this. connection, it is pointed out that the relative circulation of the water and the-hot gases will be the same as hereinbe'fore described in connection with Figures 1 to 8 inclusive. The hot gases in passing from the fire pot successively through the fines 161, 162 and 180 and out through the smoke pipe will move through the respective fiues in a direction reverse to the current of the water along the bottom of the 'walls of the corresponding sections, thereby producing the counter and eddy currents hereinbefore referred to.

As the sections of the boiler shown in F ig-i ure 9 are exact duplicates of the corresponding sections of the boiler shown in Figures 1 to 8, inclusive, it is evident that the boiler is increased in size as shown in Figure 9 by the mere addition of an intermediate section. The addition of theintermediate section not only increases the water capacity of the boiler but also effects a corresponding increase in the size and capacity of the fuel magazine. To produce various sizes of boilers, it is mere- 11y necessary to vary the number of intermeiate sections, one or more of which may be employed.

Various sizes of boilers may also be produced by altering the length of the various sections. The sizes of the sections may be varied by merely cutting out portions of the patterns to decrease the length of the sections. It will be evident that the alteration in length of the sections will require no change in fittings,'such as doors and other fittings as the front and back of the sections remain unaltered. The same grate bars may also be used,

their numbers being merely increased or de-- creased to meet the requirements. It will be obvious that great economy in manufacture is thus eflected- Increasing or decreasing the size of the sections by altering the lengths of the same also effects a corresponding change in the size of the magazine opening of each section, thereby providing a magazine of the proper proportions.

As will be evident, my improved construction, hereinbefore described, is adapted equally well for either hot water or steam boilers.

I have herein shown and described what I now consider the preferred manner of carrying out my invention but the same is merely illustrative and I contemplate all changes and modifications that come within the scope of the claims appended hereto.

I claim:

1. In a boiler, the combination with horizontally arranged, firepot, crown sheet and dome sections; of a pair of counterpart intermediate sections, each of said intermediate sections being water-jacketed and having water outlet openings for establishing communication with the next adjacent section, each of said intermediate sections having horizontally disposed flue passages therebetween, each of said intermediate sections being also provided with vertical openings at one end thereof only for establishing communication between adjacent flues, said vertical openings being on opposite sides of the water outlet,

said intermediate sections being reversely arranged with reference to the front and back of the boiler to dispose the vertical openings of adjacent sections at opposite ends of the boiler, said dome, crown sheet and intermediate sections being provided with alined, vertical central openings defining a fuel magazine.

2. In a sectional boiler, the combination with a plurality of horizontally disposed, water-jacketed sections having horizontally disposed flue passages therebetween, each section being provided with a flue opening remote from the center of said section for establishing communication between two adjacent flue passages, the openings of adjacent sections being disposed alternately at opposite sldes of the center of the boiler; of means for establishing communication between the waterjackets of adjacent sections, said means communicating with the bottom of one of said adjacent sections at the same side thereof, which is provided with the vertical flue openings, said means being disposed centrally between said flue openings of each section and with the top of the other adjacent section beneath, said 7 section being provided with vertically aligned openings defining a fuel magazine.

3. In a boiler, the combination with a base; of a series of horizontal sections supported upon said base, each of said sections having a horizontally disposed water compartment, said series including a plurality of like sections ofrectangular outline, each of said lastnamed sections of said series being provided with alined, vertical openings together defin ing a magazine, and each of said sections being provided with vertical flue openings at opposite sides thereof and each of said sections being also provided with means between said flue openings for establishing communication with the water compartment of the next adjacent section.

4. As an article of manufacture, a rectangular water section for a boiler having duplicate end portions and duplicate side portions, said section having a top wall and a raised bottom wall, a pair of nipple-receiving openings in said top wall at opposite ends of said section, a pair of nipple-receiving openingsin the bottom wall at'opposite ends of said section, and vertical flue openings at one end of said section, said openings beingdefined by walls continuous with said top and bottom walls, and being disposed at opposite sides of and defining the magazine, said sections being so formed as to dispose the water ackets horizontally and to provide horizontally disposed flue passages therebetween; means disposed clear of the fuel magazine providing communication between said horizontally disposed flue passages to produce a path of circulation first in one direction, thence upwardly and in a, reverse direction lengthwise of the boiler and so on, and means for producing water circulation in said sections such that the water in a section travels in a different direction to that of the products of combustion on the under side of said section.

6. In a boiler, the combination with horiate sections being also provided with a verti- I cal opening at one end only thereof, said intermediate sections being reversely arranged with reference to the frontand back of the boiler to present the vertical flue openings of adjacent sections at opposite, ends ofthe.

boiler, and thelowermost intermediate sectionhavlng the vertical flue opening thereof sodisposed that it will establish communication. with the interiorof the fire pot section when disposed either at the front or rear end of theboiler section.

7.v Ina boiler, the combination with horizontally disposed fire pot section having an opening at the top and a dome section; of a plurality of superimposed intermediate sections having horizontally disposed fiue passages therebetween, said sections including a crown sheet section, each intermediate section also having a vertically disposed flue opening at one end thereof for establishing communication between twoadjacent flue passages, said intermediate sections being reversely arranged and the vertical openings of adjacent I intermediate sections being disposed at the fro ntrand back of the boiler respectively and.

said crown'sheet section having anopening at the bottom CO-QXlJGIlSlVG with the opening;

"of said firepot section whereby said crown sheet section may be accommodated on said fire pot section with; the fiueopemng thereof at either the front or rear of the boiler.

8. A magazine feed horizontal sectional boiler comprising: a fire pot; a crown section; a-dome section; and one or more intermediate sections between the crown and dome sections, each of said crown, intermediate and dome sections having centrally disposed, vertically aligned, openings of greater length than width and together adapted to form .a centrally disposed fuel magazine, said sections' having horizontally disposed wvater compartments surrounding the magazineforming-openings and provided with horizontally dlsposed flue passages extending lengthwise of andonoppesite sides of. the elongated sides: of. said magazine-forming openings; said sections being provided with: vertical flue openings alternately. disposed at opposite ends of the magazine-forming openings to thereby induce travel of theproducts of combustion lengthwise of the: magazine: back and forth between the: horizontal sec:- tions; and means for establishing communication between the water compartments of said sections. a A

9. A magazine feed horizontal sectional boiler including a fire pot; a; crownisheet section; and a. dome section,.said crown sheet section and dome section being, separable one:

from the other: and having. centrally disposed,

vertically aligned openings, eachadapted. to form a portion of afuel magazine when the sections are assembled, said crown sheet sec-- tion having a vertical flue openingnearone end thereof and the dome section: having an outletifiue openingnear the opposite end. thereof whereby the products of'combustion travel lengthwise of the sections-in passing from the firefpot to the outlet opening and lengthwise ofthe magazine and means for establishing communication: between i the water: compartments of said sections, the crown sheet section; and dome sectionhaving water compartments around the magazine-- forming openings. I v V v 10. As an article of manufacture-,.anintermediate cast metal section for: a magazine feed horizontal sectional boiler, saidintermediate section having, a; magazine-forming opening of greaterlength than width and provided also with a vertically extending flue opening located intermediate-said magazineforming opening; and the periphery of the section, and a. passage extending longitudinally of the section adjacent the magazine, saidifiue and passage being soidisposed with: reference to the magazine-forming opening as toinsure travel of the productsof combustion:

'on RLnser; 'Nnwronr 

